Answer:
The correct answer is option a.
Step-by-step explanation:
In the given example, a profit-maximizing perfectly competitive firm is producing rubber bands. The average total cost of producing is higher than the price per unit of the product. The firm will be incurring a loss. But the average variable cost is lower than price. This means the price is able to cover variable costs.
The firm in this situation will continue to produce in the short run, Though in the long run if the price is still lower than the average total cost the firm will exit the market because of incurring losses.